#include<stdio.h>
#include<math.h>
main()
//唐子豪
{
    double y;
    int x,m;
    for (y=1;y>=-1;y-=0.1)
    {
        m=acos(y)*10;
        for(x=1;x<m;x++)printf(" ");
        printf("*");
        for(;x<62-m;x++)printf(" ");
        printf("*\n");

    }
    
}